Home / 13,280,047.20-19,920,070.80-12,083,320.80

Finding the Fourth Proportional to 13,280,047.20, 19,920,070.80 and 12,083,320.80

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Solution

The fourth proportional to 13,280,047.20, 19,920,070.80 and 12,083,320.80 is: 18,124,981.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280,047.20 : 19,920,070.80 = 12,083,320.80 : x
  2. Step 2: Convert to fraction form
    13,280,047.20/19,920,070.80 = 12,083,320.80/x
  3. Step 3: Cross multiply
    13,280,047.20x = 19,920,070.80 × 12,083,320.80
  4. Step 4: Simplify right side
    13,280,047.20x = 240,700,605,835,112.66
  5. Step 5: Solve for x
    x = 240,700,605,835,112.66/13,280,047.20
  6. Step 6: Final answer
    x = 18,124,981.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.